Two women lay flowers outside the Royal Artillery Barracks in Woolwich as anti-terror police were today preparing to question the two men shot and injured after the Woolwich soldier killing as details about their backgrounds began to emerge. Max Nash/PA Wire

A floral tribute outside the Royal Artillery Barracks in Woolwich, left following an attack in Woolwich yesterday which left a serving soldier dead and his two attackers shot and injured by police. Gareth Fuller/PA Wire

A soldier stands in the rain as security is tightened around Woolwich Barracks on May 23, 2013 in London, England. A British soldier was murdered by suspected Islamists near London's Woolwich Army Barracks yesterday in a savage knife attack. British Prime Minister David Cameron has said that the 'appalling' attack appeared to be terror related. (Photo by Dan Kitwood/Getty Images)

Members of the community lay flowers outside Woolwich Barracks on May 23, 2013 in London, England. A British soldier was murdered by suspected Islamists near London's Woolwich Army Barracks yesterday in a savage knife attack. British Prime Minister David Cameron has said that the 'appalling' attack appeared to be terror related. (Photo by Dan Kitwood/Getty Images)

Video has emerged showing the moment armed police confronted two men suspected of murdering soldier Lee Rigby in Woolwich.

The dramatic footage obtained by the Daily Mirror shows suspect Michael Adebolago (28) running towards officers as a second man, named locally as 22-year-old Michael Oluwatobi Adebowale, runs alongside, aiming his gun at the officers.

The video shows Adebolago being sent to the ground by two shots from the police car, before two officers jump out to cover him.

The officers arresting Adebolago do not appear to see Adebowale aiming his weapon at them but a third office spots him and he is brought to the ground as a further six shots are fired.

This video contains images and audio which some may find distressing

In other developments today, two new arrests were made: a man and a woman on suspicion of conspiracy to murder, following raids at six addresses in London and Lincoln.

It also emerged that the two suspected killers of Drummer Rigby were already known to MI5 and, almost certainly, to counter-terrorism officers in the police. One of the men was stopped from travelling to Somalia to join the Islamist militia Al-Shabaab last year.

Security officials insisted that there had been no evidence that either of the two men were planning an imminent attack. Nor was there any evidence, they say, that they were discussing beheading. They point out that there were plenty of references to it in Islamist websites.